Recommendations, Please: Google AdSense Alternatives

Seeking an AdSense alternative for 1 of my sites. The reason: I want to maintain privacy for the site by not having to use the same Google AdSense publisher ID (which can link it to other sites on the same AdSense account). Google forbids people having more than 1 AdSense account AFAIK.

Can anyone recommend reputable alternatives? I'm needing the following 2 attributes in a PPC or CPM ad network:

1) Can handle international traffic, showing relevant ads. Doesn't have to support non-english ads (would be nice if it did), but at least ads for/from major non-US countries.

2) Keyword/content weighting or targeting. Whether it be contextual page scanning, or I can supply relevant keywords, I need to have the ads be smart about the pages they are appearing on. Many of the site's pages have a lot of generic content - labels, explanatory text, legal, etc. - with a small portion of very important and relevant information on the page that the visitor is seeking, and ultimately using the site for. I need to have a (contextual/intelligent) ad system that I can steer away from the common boilerplate text and direct to that unique/important/relevant part of the page - like Google AdSense's 'section weighting' feature, or their Custom Search Ads.

Thank you in advance for any recommendations.

-DG